Reflector for adding machines



G. DUKEHART .REFLEGTOR FOR ADDING MACHINES Mgr. 3, 1925.

Filed March 1.0, 1924 Patented Mar. 3, 1925.

UNITED STATES GRAHAM DUKEHART, OF PORTLAND, OREGON.

i REFLECTOR FOR .ADDING MACHINES.

Application filed March 10, 1924.

To @ZZ io/710m t may concern.:

Be it hereby known that I, GRAHAM DUKEHART, a citizen of the United States, and a resident of Portland, in the county of Multnomah and State of Oregon, have invented a new and useful Reflector for Adding Machines, of which the following is a specification.

This invention relates more particularly to adding machines such are used in banks for bookkeeping and preparing statements of accounts.

An object of my invention is a. reflector for adding machines which will illuminate. the balance column of figures when a statement is in the adding` machine and the carriage is in the extreme righty hand position.

A second object is to illuminate the last balance to make it visible to the operator during the time he is running it on the keys prior to running the various items he wishes to deduct from this balance.

A third object is to reduce the opportunity for errors ordinarily occasioned by poor lighting on this part of the machine, or b v the operator recording the last balance on the keys before inserting the sheet in the machine.

A fourth object is to provide a simple and inexpensive reflector of material which will produce the best light with the least glare, and at the same time construct the device in a manner to make it easy to apply and yet not liable to become loose or out of adjustment.

A fifth object is to utilize the usual line finder as a support for the device and to so construct the reflector that it can be readily adjusted to reflect available light upon the balance previously mentioned.

l accomplish these results in the manner set forth in the following specification and illustrated in the accompanyingdrawings, in which Figure 1 is a rear elevation of the reflector showing it in place on the line finder. Figure 2 is a side elevation of Figure 1, and Figure 3 is a plan. Figure 4 is a rear view of the device before being applied to the machine. Figure 5 is a perspective view of the right side of the adding machine on which the device is to be. used showing the carriage in its righthand position with the light from the lamp reflected on the balance @Olumn of the statement sheet,

to provide Serial No. 698,18*?.

Similar numbers of reference refer to the same part-s throughout the several views.

Referring in detail to the drawings, l hav constructed my device of sheet aluminum. on account of its superior reflecting qualities, with the reflector 10 formed on the upper part of a raised standard 11. A projecting ear 12 is forme-d on the member 11. The member 11 is bent around the backturned portion of the finder 13 and back upon itself, making a slidable fastening between the reflector and the line finder 13. The ear 12 is then bent around the curved end of the line finder 13 which is mounted on the case 14 of the adding machine.

This construction permits the bend 15 to be altered, or the member 11 to be bent or twisted as much as desired to secure the desired reflection of light` without loosening the hold of t-he device on its support 13.

It will be understood that the statement sheet 16 is placed around the platen, as is usual with this class of machines. and that some form of light either natural or from a lamp 1T is available.

The keys 18 are those usually employed. The figures 19 represent the balances at given times.

rThe operation of my device is follows: The operator upon receiving one or more checks against a patrons account. takes his statement sheet and inserts it in the machine so that the last balance which is shown in the righthand column of figures 19 appears over the line-finder 13. 'he reflector 10 has been adjusted by pressure from the fingers until the best available light is reflected on the lowern'iost or last balance. The operator now reats this balance and runs it on the keys 18, after which. he enters the various checks (on the keys) and strikes the new balance in the usual manner.

1t will be understood that the reflector is stationary and that the only time the op.- erator is interested in the figures which it can illuminate is when the carriage is in the righthand position, as it should be when thc last balance is being recorded in the maf chine.

I am aware that reflectors in various forms have long been used for throwing lightupon obscure objects. I therefore intend to cover only such forms and 1nodifications as fall fairly within the following claims.

What I claim is: i f

l. The combination of an adding"machine having a slidable roller Vplaten and a stationary line finder; with Arefiector mounted on said line finder in a manner so as to reflect rays of light from a source ofllight upon the right 'hand end of said platen only When in its farthermostl right hand position; said reflector having means for adjustably attaching same to the line finder of said machine.

2. The combination of an adding machine having a slidable roller platen and having a stationary line finder in front of said platen; yand a reflector mounted on said line finder adapted to reflect rays roma source of light upon the right hand border. of a sheet of paper when around said platen vvliile vsaid platen is in its right hand position. y

3. A reflector for adding machines hav- Y ing Ain combination a support comprising a line finder of said machine; a platen behind said line finder; a reflector mounted'on said Support, said reflector consisting of a reflecting surface .formed on a pliable standard; and means for attaching' lsaid standard to said support in a. manner that the right hand margin of a sheet of paper on Vsaid 3U platen Will be illuminated by reflecting light from asource of lightwvhile said platen is in itsl right hand position. Y

4. A sheet aluminum reflector consisting Vof a standard; aV reflecting surface formed on one end of said standard and a laterally projecting ear formed on the opposite end thereof adapted to serve as means for fastening said standard to a support.

5. The combination of a slidable .cylindrical platen; a stationary support in front of said platen, said support having its righthand end turned baclvvardly in the form of' a narrow pliable standardrwhose lowerend Y overlaps around the short end of vsaid J- Y shaped member, said standard having a laterallyV projecting ear adapted to be .curled around the closed end ofsaid line finder in a manner to prevent said standard from slipping ofi'1 of said short armof said J-shaped line finder. Y

GRAHAM DUKEHART. 

